Separator roller and bearing therefor



Dec. 6, 1927.

J. T. NQRMAN SBPARATOR ROLLER AND BEARING THEREFOR Filed Oct. 18. 1926 2Sheets-Sheet l INVENTOR 1; 1 Z'Mrmm ATTOR'NEY 2 Sheets-Sheet z INVENTORp112 fjlfbffllwi AITTORNEY I N Q /fi m m m ma; wwww w E F m h I C C K EC A fies. 6, 1927.

- J. T, NORMAN SEPARATOR ROLLER AND BEARING THEREFOR Filed Oct. 18. 1926Em m Patented Dec. 6, 1927.

'Jossrar; seame o RE'nE'aIQK Mem-Lem snrenaron nor-inert AND BEA-nineTHEREFOR;

Application filed October 18, 1926. Serial No. 142,387.

The invention generally relates to coal and slate separators andprimarily has for its object to provide certain new and useful: iinaproveinents in such separators of the general type disclosed in myPatent #1,025, 5 87;is

sued May 7, 1912 whereby undue wear ofthe. separator rollers andthebearings 15 even" come and a great economy thus efiectsd.

In the use or all types cfscpa'rators adapted for separating slat-etromcoal and. coke immense sums must be expended to. replace parts ofthe devices which become. worn be yond eficient usefulness in analarmingly short time due to the abrasive fiCtlOIl oi the coal and cokescraping th-ereover. While the wear incident to the use of the apparatusdisclosed in my patent referred to is much less than that occasioned bythe use of stationary screens or grates due to the fact that the contactof the coal and coke is a rolling contact,

passing over the rollers all rotating in one direction, nevertheless therollers do wear ll1 11C l1 more quickly than is desirable and the endbearings provided therefor wear out very quickly .due to the. fact thatthey are unprotected against the abrasive action of the coal and. cokepassed thereover. orathe in-' ductionof dust particles: of the productsdirectly into the interior of such bearings.

Therefore, in its more detailed nature, the invention seeks to provideWear resisting separator rollers equipped-with interchange able andreplaceable wear resisting sleeve and bearings for the rollers which areprotected against abrasive action from without and so constructed andarranged that coal and coke dust particles cannot find their wayinto theinterior thereof.

With the above and other objects in View the invention further resides:inthe novel details of construction, combination andarrangeni'ent ofparts, all of which will lie-first: fully described in the followingdetailed description, then be particularly pointed out in the appendedclaims, reference being had to the accompanying drawings, in which:

Figure l is a vertical longitudinal section of a separator embodying myinvention.

Figure 2 is a plan View of a bodying my invention.

Figure 3 1s a detail perspective views of one wear sleeve.

Figure 4: is a detail perspective view of a protective casing for abearing. j

In the drawings in which like numerals of reference indicate like partsin all of the.

separator e1nfigures l represents the supporting framing. Wh1ch1ncludesthe upper and lower trans: verse bearlngsupportmg beams 2 upon which heb ses 3' at the bearings hereinaftermore specifically referred toaremounted; The beams 2 are provided with transverse grooves it adapted toreceive thetransversetenons 5: which project from-the bottom surtacesofthe bearing bases 3,. the said tench and; groove connections S8fV1Zlgto: facilitate mounting of; the hearings intransverse align nientandpreventing twisting-of the said;

bearing base. .3 and. joins the-bearing man-- ber proper, which saidbearingsare eachin the nature of a hollow sleeve, the lower onesbeingdesignated 10- and-being. closed at theirv lower ends while theuppersbearings. are designated 11 and are: open at. bothends, as

illustrated inF'igure l'ot'thedra-wings, and

for a p.urpose soon to 'bedescribed.

Each of the bearings 10' 11 are provided with a central bore adapted toreceive, a

bronze bearing-bushingrlQ, both said hear-,-

ing' bushings being in coaxial relation and acapted to recelvethereduced shaft' extensions 13 of the bearing heads .14, one thereof beingsecured in each end of the roller, core'lfi.

The roller core 15 structed of relatively soft metal in view of thetactthat when the device is.1.1sed-for separating coal or coke the saidcore would in the nature of a; hollow cylindrical body which' lnay becon? iou not be subjected to wear by reason of the V provision OflIldllSlater to be described and a the heads lat inay'beshrink-secured into theendsof the. said. core or otherwise secured in the-ends of thecore, asmay/be desired.

short of the end of the lower-bearing bushing 12 andthe-upper bearingshaft end '13' extends through the bearing. 11 and its,

bushing. 12 and into'the gear housing 16, where a small bevelled pinion17 is secured upon the end'thereof and which is adapted The lowerbearing shaftend 13 terminates to mesh with a larger bevelled gear 18mounted upon the transverse driving shaft 19 housed in the said housing16. and having suitable bearing upon the framing 1, power being appliedto the shaft 19 through the pulley and transmission belt connection2021.

As the separator device is tobe positioned on an incline, in the mannerindicated in Figure 1 of the drawing, and as the gears 1718 are to runin a suitable lubricant in the housing 16, a washer 22 may be mountedbeneath each pinion 17 and a lubricant drip plate 23 may bemounted uponthe upper shaft ends 13 so that itsbent fingers 24 will tend to causesuch lubricant as may contact with the plate 23 to drip back intoposition for working its way into the housing 18.

For further providing the holding of lubricant'the upper bearing bushing12 terminates short of the lower end of the bearing 11 and at the pointof its termination the said bearing is provided with an annular groovein which a suitable packing 25 is mounted and serves to hold thelubricant.

It will be also observed that the uppermost head 14 is spaced inwardlyof the upper end of the core 15 to provide an annular recess 26 in whichthe lowermost end of the tance providing an annular recess 27 adapted toreceive the upper end of the respective lower bearing 10 in the mannerillustrated in Figure 1 of the drawing, thereby provid ing for aconsiderable extension of the lower end of said core over the upper endof the said bearing to effectively perfect the induc tion of coal dustor other abrasive substance into the said bearing. A suitable end thrustbearing 28 is mounted in the lower end of the lower bearing bushing 12to be engaged at one side by the end of the lower bearing shaft end 13'and'at the other side by a washer 29 engaged by a set screw 30 projectedthrough a threaded tap in the closed end 31 of the bearing 10 andwhereby the roller core may be adjusted longitudinally to provide forperfect functioning of the power transmission agency 1718. A jam nut 32may be provided to secure the screw 30 to adjusted positions, and aforce feed grease cup 33 may be projected into the end wall 31 andadapted to communicate with the interior of the bearing to provide forlubricating the same.

In the foregoing description. I have disclosed my bearing members forthe separator rollers which are so constructedand mounted correlativelyto the ends of the separator rollers that the induction of coal dust orother abrasive particles into the interior of the bearings is renderedimpossible and by thus eliminating undue wear on the bearings their lifeis greatly prolonged.

While the separator illustrated in this application is adapted. for usefor grading fruits or separating materials other than coal and coke itis for the latteruses that the same has been specifically designed andfor this purpose I havedesigned and disclosed wear sleeve units adaptedto be than coal and coke the device could be used without mounting thewear sleeves thereupon as they would not be necessary in such cases.

For the purposes mentioned I provide the core 15 at its lower ends witha notched flange enlargement 34 adapted to serve as an end abutment toprevent the sleeve units 35' from sliding off the lower end of the coreinto engagement with the lower bearing member; a

Each wear sleeve 35 is constructed as an interchangeable unit or, inother words, all of the sleeves 35 are of like construction with theexception of the uppermost one thereof which is made of larger diameterfor the purpose soon to be described. Each sleeve 35 is in the nature ofa hollow cylinder having a notched annular recess 36 in one end and anotched flange projection 37 at its opposite end, the notched recess 36of the lowermost unit 35 being adapted to coengage with the notchedenlargement 34 at the lower end of the. core 15, while the extension 37of the'said lower unit coengages with the notched recess 37 of the nextunit; the remaining unit or units being similarly interlocked so thatwhile the units are thus mounted in afmanner facilitating quick removalandproviding no external projections, they are all caused to'rotate inunison with the core 15.

The uppermost sleeve unit 35 is made larger in diameter than theremaining units because of the factthat the upper end of the separatorreceives the most wear, the coal or coke being dumped into the upper endof the sleeve. V

Thus the greatest wearing surface is provided at the point where themost wear occurs. v

By providing the interchangeable and replaceable wear sleeve units 35all of the units may be changed at any time desired or such individualones thereof as need replacement, it being understood'that the uppermostsleeve J need not 'bev discarded when it becomes partially wvorn as thesame would be reduced 6 .to approximately the diameter of the 'normalsi'zeasleeves and when thus reduced in size could be replacedffor oneofthe said sleeves,

' ,To alsolpreventithe exposed end oi'each lower bearing member 10 fromthe abrasive .T Su'itabl'BfESible {and rear "end gnide plates '38areprovidedt serving to provide a sort of hopper having the separatorrollers as a screening floorand adapted to receive thei e uctlitofbesepated I fEaich'hea a s9 s provided "with a down ivardly ,G tended shank,Which may 'he screwrseeured"to'jthelrespective bearing shank 'ilifth'enia-ljinerjil'lustratedj in liigure 1 of'the r w ngv "In the use ofcommon types or screening grates, screens, and the like, much difficultyand great expense is occasioned by :the excessiveh-ivearjto which saiddevices are "subjeetedby the abrasive acti-onoit' coal, coke andthelike. The parts vvear out so quickly that e rm0us m m st b QI P lL lto provide for replacement vvhich greatly adds.

tothe cost of production of the material ?bei gig addi; 7 y ,iInftheu'se ofdevices ciztthe type disclosed in my patent herein referredto, in which rotating rollers-are proviided much of the expenseincidenttothe qu'ickiWaringou't of parts is re'lim'in-atec'l,butthejnecessary cost ,for replacementis still enormous and adds greatlyto'the cost of production even by the use of such eiiicient apparatus.

By providing-a structurefas herein disclosedfin which a soft rollercoremaybe employed, which may be mamifacturedrela tivly cheaply andby'theuse of individually removable, replaceable and interchangeablehardmetal Wear sleeves, especially designed abrasive dust-proofbearings, and protective heads therefor, ,means is providedior gradmgthe. coal with a maximum of elhciency and am n'imum of Wear,thussavingggreatly in the expense er the operation of grading andreducing the final cost of the product.

it may be desired .to provide a more posi-V.

tive turn over'of the coal in interest of more efiicient coal gradingand separation. Toaccoinplish this each sleeve 35 of alternate rollersmay be equipped with apair of turnover lugs 41 projecting a'shortdistance from the peripheral facethereot, each adjacent one end of thesleeve and diametrically oppositethe other.

This specific arrangement of the lugs 41 the one sleeve.

may, of'course, be varied. [If desired, they may even be employed onalternate rollers which are inone piece throughout their length and notequipped with removable Wear sleeve From the foregoing description,taken in connection with the accompanying drawings 1t 11s thought thecomplete construction, :the

manner of use'and the advantages of'myinvention will be readily apparentto those skilled in the art to which my invention rel-ates; Y

What I claim is':

1. A deviceof the classde'scribed compris ing -a.--'pluralityofrollersmcu-n ted inspaced. 'rel-atlon, and means for rotating the"rollers,

said rollers each comprising a coreand plurality of removable Wearsleeves mounted thereon"and-interconnected attheir ends.

2. A device of the class described comp-rising plurality ofrollersmounted insp-a'eed relation, and means for rotating said rollers,

said roller-s each comprisingFa core and a plurality-oi removable andinterchangeable i Wear sleeves mounted thereon and "intercom nectedat-their ends. 1 r f v A, device of the class described ciom-pri s ing aplurality of-rollers mounted inspaced relation, and lDGZIIlSfQI rotatingsaid rollers,

said rollers each comprising a corefand a plurality of removable andinterchangeable Wear sleeves mounted thereon and interconnected at theirends, andmea-ns toeausel one sleeve of each roller to rotate \vith tlierespec'tive core.

A device of the 'classdescribedcompris- 7 ing a plurality of rollersmounted in-spaced relation, and means i'or rotat-ingsaid rollers, saidrollers each comprising a core and-a plurality r removable andint'er'ch-angea ble Wear sleeves mounted thereon, and means to cause onesleeve to rotate With the'core' and the remainder of the eves tomovewvith 5. A device of the class; described I comprising a'ipluralityof rollers mounted in spaced relation, and means for rotating-the"roller-s, said rollers each comprising core and "a plurality ofremovable and interchangea ble Wear, sleevesmountedthereon, one saidsleeve being of greater diameter than the remainder of the sleeves.-

7 6. A; device ofthe,classilescribed comprising a plurality or -ollersino nited 'in'spaced relation, and means for -'rot;at-ing said rollers,said roller-s each comprising a cylindrical core liavinga notchedenlargen'ient at one end and a Wear sleeve adapted to fit over the coreand having an end thereof notched to receive the enlargement of the corefor the purposes specified. v y 7. A device of the class describedcomprising a plurality of rollers mounted in spaced relation, and meansfor rotating" said rollers,. said rollers each comprising a cylindricalcore having a notched enlargement at one end and a plurality ofremovable and interchangeable wear sleeves each having notches in oneend and a notched extension at the other end for the purposes specified.

8 A device of the class described comprising a plurality of rollersmounted in spaced relation, each having a reduced bearing shaft end ateach extremity thereof and an annular recess surrounding the shaftend-at 'atleast one end'l'hereof, and a bearing for receiving each shaftend, at least one of said bearings having a sleeve projecting into therecess surrounding the particular shaft end.

9. The combination with an inclined separator roller having a reducedbearingshaft end at its lower extremity and an annular recesssurrounding the shaft end and eX- tending a distance into the rollerend, of a bearing having a sleeve for receivingthe shaft end and whichprojects into the annular recess in the roller end.

10. The combination with an inclined separator roller having a reducedbearing shaft end at its lower extremity and an annular recesssurrounding the shaft endv and extending a distance into the roller end,of a bearing having a sleeve for receiving the shaft end and whichprojects into the annular recess in the roller end, means at the upperextremity of the roller for imparting rotation thereto, and a set screwfor engaging the reduced shaft end and adaptable for taking uplongitudinal play to retain proper relation of the rotation providingmeans. Y I

1l.-The combination with an inclined separator roller having a reducedbearing shaft end at its lower extremityandan annular recess surroundingthe shaft end and extendinga distance into the roller end, of a bearinghaving a sleeve for receiving the shaft end and which projects into theannular recess in the roller end, means at the upper eX- tremity of theroller for imparting rotation thereto, a thrust bearing member in thebearing for taking up end thrust on the reduced shaft end, and a setscrew directed axially through the bearing to engage the thrust bearingmember to take up play.

12. The combination with an inclined separator roller having a reducedbearing shaft end at its lower extremity and an annular recesssurrounding the shaft end and extending a distance into the roller end,of a bearing having a sleeve for receiving the shaft end and whichprojects into the annular rethe bearing sleeve.

cess in theroller end, and a protective sleeve head mountable over theexposed portion of 13. A device of the classdes'cribed' comprising aplurality of rollers mounted in spaced relation, and means f r rotatingsaid rollers, said rollers each comprising a cylindrical core having anotched enlargement at one end and a wear sleeve adapted to fit over thecore and having an end thereof notched to receive the enlargement of thecore, each said core having a reduced bearing shaft end at its lowerextremity and an annular recess surrounding theshaft end and extending adistance into the core end, and a bearing for each shaft end having asleeve for receiving the shaft end and which projects into the annularrecess in the core end.

14. A device of the'class described co1nprising a plurality of rollersmounted in spaced relation, and means for rotating said rollers, saidrollers each comprising a cylind ical' core having a notched enlargementat one end and a plurality of removable and interchangeable wear sleeveseach having notches in one end and a notched extension at the other end,each said core having a reduced bearing shaft end at its lower extrenity and an annular recess surrounding the shaft end and extendinga'distance into the core end, and a bearing for eachshaft end having asleeve for receiving the shaft end and which projects into the annularrecess in the core end. i V

15. A device of the class described comprising a plurality of rollersmounted in spaced relation, and means for rotating the rollers, saidrollers each comprising a core and a plurality of removable wear sleevesmountedthereon, and each sleeve of alternate rollers having a pluralityofturn-over lugs projecting frjom its peripheral face for the purposesspecifiedfi 16. A device of the class described comprising a pluralityof rollers-mounted in spaced relation, and means for rotatingt'herollers, said rollers each comprising a core and a plurality ofremovable wear sleeves mounted thereon, and each sleeve of alternaterollers having a pair of turn-over lugs projecting fromits peripheralface for the purposes specified, the lugs of each sleeve beingpositioned at diametrically opposite sides of the sleeve one adjacenteach end thereof.

JOSEPH T. NORMAN.

